Nero Tondo, which translates from Italian to "round black", is an heirloom Spanish radish with a matte black exterior and dense, crunchy white interior flesh. Large, round, 2-4 in. roots have a pungent, spicy flavor reminiscent of horseradish that turns mild and sweet when cooked. Nero Tondo radishes are slow to bolt in hot weather; and are also very cold tolerant. Seeds can be sown in the fall to overwinter for a spring harvest, or sow in spring for summer and fall harvests. For centuries, black radishes have been touted to have multiple healing properties for the liver and respiratory tract.
Growing Nero Tondo Radish Seeds
Sow seeds ½ in. deep and ½ in. apart, in rows at least 8 in. apart. Kept at 55-65°F., germination is in 4-11 days. Radish seeds do not germinate well in hot conditions. Thin to 2 to 3 in. apart.
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We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacement packets or issue a refund.